<template>
  <div id="app">
    <header>
      <router-view name="header"/>
    </header>
    <main>
      <router-view/>
    </main>
    <footer>
      <router-view name="footer"/>
    </footer>
  </div>
</template>

<style lang="less">
html,body, #app{
 height: 100%;
}
.app{
  display: flex;
  flex-direction: column;
  main{
    flex:1;
    overflow:auto;
}
}
</style>
